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ASTEP South: An Antarctic Search for Transiting Planets around the celestial South pole
Nicolas Crouzet, Karim Agabi, Alain Blazit +11
ASTEP South is the first phase of the ASTEP project that aims to determine the quality of Dome C as a site for future photometric searches for transiting exoplanets and discover ex…
An Eight-Octant Phase-Mask Coronagraph
N. Murakami, R. Uemura, N. Baba +4
We present numerical simulations and laboratory experiments on an eight-octant phase-mask (EOPM) coronagraph. The numerical simulations suggest that an achievable contrast for the…
Prototyping coronagraphs for exoplanet characterization with SPHERE
Anthony Boccaletti, Lyu Abe, Jacques Baudrand +7
The detection and characterization of extrasolar planets with SPHERE (Spectro Polarimetric High contrast Exoplanet REsearch) is challenging and in particular relies on the ability…
Precise Wavefront Correction with an Unbalanced Nulling Interferometer for Exo-Planet Imaging Coronagraphs
J. Nishikawa, L. Abe, N. Murakami +1
Very high dynamical range coronagraphs targeting direct exo-planet detection (10^9 - 10^10 contrast) at small angular separation (few lambda/D units) usually require an input wavef…